Buying Settings is where you can define properties which will be applied in the Buying module's transactions.
You can find Buying Settings at Buying > Setup > Buying Settings.
Let us look at the various options that can be configured:
1. Supplier Naming By
When a Supplier is saved, system generates a unique identity or name for that Supplier which can be used to refer the Supplier in various Buying transactions.
If not configured otherwise, ERPNext uses the Supplier's Name as the unique name. If you want to identify Suppliers using names like SUPP-00001, SUPP-00002, or such other patterned series, select the value of Supplier Naming By as "Naming Series".
You can define or select the Naming Series pattern from: Setup > Data > Naming Series
Click here to know more about defining a Naming Series.
2. Default Supplier Group
Configure what should be the value of Supplier Group a new Supplier belongs to depending on what he supplies.
3. Default Buying Price List
Configure what should be the value of Buying Price List when a new Buying transaction is created. You can modify it be the arrow at the end of the field to change the currency and country.
4. Purchase Order Required
If this option is configured "Yes", ERPNext will prevent you from creating a Purchase Invoice or a Purchase Receipt without creating a Purchase Order first.
5. Purchase Receipt Required
If this option is configured "Yes", ERPNext will prevent you from creating a Purchase Invoice without creating a Purchase Receipt first.
6. Maintain Same Rate Throughout Purchase Cycle
If this is checked, ERPNext will stop you from changing an Item's price in a Purchase Invoice or Purchase Receipt created by a Purchase Order, i.e. it will maintain the same price throughout the purchase cycle. If there is a requirement where the Item's price can change, you should uncheck this option.
7. Allow Item to be added multiple times in a transaction
When this checkbox is unchecked, an item cannot be added multiple times in the same Purchase Order. However, you can still explicitly change the quantity. This is a validation checkbox for preventing accidental purchase of the same item. Also, this can be checked for specific use cases where there are multiple sources for the same material in manufacturing for example.
- Supplier Group